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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

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 * You should have received a copy of the GNU General Public License version

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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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import java.io.File;

import java.io.IOException;

import java.util.HashMap;

import java.util.Map;

import javax.security.auth.callback.CallbackHandler;

import javax.security.auth.login.LoginContext;

import javax.security.auth.login.LoginException;

/*

 * @test

 * @summary Checks if refreshKrb5Config is set to true for Krb5LoginModule,

 *          then configuration will be refreshed before login() method is called

 */

public class RefreshKrb5Config {

    static final String TEST_SRC = System.getProperty("test.src", ".");

    static final String HOST = "localhost";

    static final String NOT_EXISTING_HOST = "not.existing.host";

    static final String REALM = "TEST.REALM";

    static final String USER = "USER";

    static final String USER_PRINCIPAL = USER + "@" + REALM;

    static final String USER_PASSWORD = "password";

    static final String KRBTGT_PRINCIPAL = "krbtgt/" + REALM;

    static final String KRB5_CONF_FILENAME = "krb5.conf";

    public static void main(String[] args) throws LoginException, IOException {

        Map<String, String> principals = new HashMap<>();

        principals.put(USER_PRINCIPAL, USER_PASSWORD);

        principals.put(KRBTGT_PRINCIPAL, null);

        System.setProperty("java.security.krb5.conf", KRB5_CONF_FILENAME);

        // start a local KDC, and save krb5 config

        KDC kdc = KDC.startKDC(HOST, null, REALM, principals, null, null);

        KDC.saveConfig(KRB5_CONF_FILENAME, kdc, "max_retries = 1");

        System.setProperty("java.security.auth.login.config",

                TEST_SRC + File.separator + "refreshKrb5Config.jaas");

        CallbackHandler handler = new Helper.UserPasswordHandler(

                USER, USER_PASSWORD);

        // set incorrect KDC

        System.out.println("java.security.krb5.kdc = " + NOT_EXISTING_HOST);

        System.setProperty("java.security.krb5.kdc", NOT_EXISTING_HOST);

        System.out.println("java.security.krb5.realm = " + REALM);

        System.setProperty("java.security.krb5.realm", REALM);

        try {

            new LoginContext("Refreshable", handler).login();

            throw new RuntimeException("Expected exception not thrown");

        } catch (LoginException le) {

            System.out.println("Expected login failure: " + le);

        }

        // reset properties

        System.out.println("Reset java.security.krb5.kdc");

        System.clearProperty("java.security.krb5.kdc");

        System.out.println("Reset java.security.krb5.realm");

        System.clearProperty("java.security.krb5.realm");

        // login with not-refreshable config

        try {

            new LoginContext("NotRefreshable", handler).login();

            throw new RuntimeException("Expected exception not thrown");

        } catch (LoginException le) {

            System.out.println("Expected login failure: " + le);

        }

        // login with refreshable config

        new LoginContext("Refreshable", handler).login();

        System.out.println("Test passed");

    }

}